DECAPOD CRUSTACEANS OF THE WEST INDIES 59 



transverse tan bands across posterior margins of anterior five terga; 

 sixth tergum tan anteriorly and dark brown posteriorly; broadest 

 portion of stripe on first and second somites, in both becoming nar- 

 rower posteriorly. Lateral surface of carapace straw brown with 

 several obliquely directed dark brown lines, posterior and ventral 

 ones directed posteroventrally; posterolateral area with lateral and 

 ventrolateral pale tan spots outhned above and below by afore- 

 mentioned pairs of dark brown lines. Ventrolateral portion of ab- 

 dominal terga and pleura mottled straw brown with short dark 

 brown lines (in anterior somites) or spots (in posterior somites) 

 adjacent to articular knobs at posterior bases of pleura: second pleu- 

 ron with prominent pale tan spot at base, and succeeding three 

 pleura with similar, progressively smaller ones, all forming row with 

 lateral spot on carapace; each spot on pleura with dark border. 

 Ventral and posterior margins of pleura very light with dark sub- 

 marginal line. 



Antennular peduncle straw bro^vn with dark browm rings, antennal 

 peduncle straw brown with dark brown markings just proximal to, 

 and on lateral margin of, antennal scale; flagella dark brown to tan. 

 Third maxillipeds pale, translucent, with narrow black lateral margins 

 on more distal podomeres. First two pereiopods translucent to straw 

 brown with dark brown lateral line on merus; carpus straw brown 

 with orange spot on articular surface; bases of two distal podomeres 

 orange, followed by bluish cream throughout most of their lengths, 

 with subterminal narrow, vivid orange band and terminal white one 

 bearing setal tufts; setae dark gray at base fading to cream distally. 

 Basal podomeres (coxa through ischium) of third leg cream with 

 irregular dark browm splotches; merus light basally, becoming dark 

 brown distally and bearing very dark brown tubercles, few with 

 corneous tips; carpus dark brown with light tan band at midlength, 

 propodus light tan in proximal fourth and dark brown in distal three- 

 fourths, tubercles on carpus and propodus dark at base but with 

 corneous (yellow) tips; dactyl mostly corneous. Fourth and fifth 

 pereiopods with basal podomeres as in third pereiopod; merus with 

 flexor portion, proximal and distal ends dark brown, remainder tan; 

 carpus with proximal extensor surface tan, otherwise dark brown; 

 propodus and dactyl as on third pereiopod. 



In most young specimens, light dorsomedian stripe extending from 

 tip of rostrum almost to, or to, distal margin of telson; on cephalo- 

 thorax, stripe of uniform width; on first abdominal somite, expanded 

 in posterior half; in succeeding three somites, narrow anteriorly and 

 broadening posteriorly; in fifth somite narrow and of uniform width; 

 in sixth, essentially similar to that in second through fourth; and on 

 telson, narrower posteriorly. In older individuals, dark pigment 



317-180—69 6 



